Xonotlite and Margarosanite, with Roeblingite(?) and Willemite - Franklin NJ

I'm not terribly fluent in the rarer assemblages of Franklin minerals, but this piece looks like it has it all. Under shortwave UV bright green fluorescing ever-present willemite dominates but the rarer minerals peek through nicely (two sides shown). Bright bluish is margarosanite, while the violet is xonotlite. The red is likely roeblingite (can someone confirm?) and I assume the orange to be clinohedrite. There are probably some other minerals in this piece also, but beyond my abilities to ID.

13 views0 comments

Email comments or suggestions:


Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.

Feel free to contact us with comments and suggestions.

Like us on Facebook!

  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!